Decide whether the given ordered pair is a solution on the system of equations

1.y=2x-6
x+y=8
(4,2)

2.3x+5y=18
y=7x-4
(1,3)


3.-5x+y
y=-x
(-2,2)

Answers

Answer 1

1. No

2. yes

3. yes

this needs 20 answers


Related Questions

2. To use the weight machines at a
health club, you must be at least
12 years old. Brandon writes the
inequality a > 12, where a represents
age in years, to represent this. Is
Brandon correct? Explain.

Answers

Answer:

no, he is not correct because if you must be at least 12, then the inequality should include 12

it should be written as:

a ≥ 12

Step-by-step explanation:

^

Solution (x, y) i dont understand it

Answers

Answer:

(3, 3)

Step-by-step explanation:

I guess you're looking for a point that satisfies 2 functions (red and blue). That point is an intersection of these two functions, hence (3,3)

Answer:

[tex]\boxed{\boxed{(x,y)=(3,3)}}[/tex]

Step-by-step explanation:

to understand thisyou need to know about:system of linear equationgraphing system of linear equationtips and formulas:when we have two linear equation to find the value of x and y is called the system of linear equationwhen we have graph, the solutions of system of linear equation are the coordinates of two lines cross togetherlet's solve:

since you can see at "tips and formulas" what linear equation is and what the solutions are when you have graph

if you see the graph attentively, you can see that the blue line and the red line cross together at (3,3) coordinates

therefore

the solution of the system of linear equation is

(x,y)=(3,3)

You and your family order dinner to be delivered by uber eats.  The bill is $36.00.  You volunteer to pay the driver a tip.  You only have $5.40.  What percentage did you pay as a tip?

Answers

Answer:

15%

Step-by-step explanation:

Nick is making bread dough. The recipe requires 3/4 cup of flour and 1 1/8 teaspoon of salt. Nick wants to make the recipe using 1 cup of flour. To maintain the ratio, how much salt is required when 1 cup of flour is used?

(explain)

Answers

1 1/2 tsp of salt is required


The recipe requires 3/4 cup of flour and Nick wants to make the recipe using 1 cup of flour.
The recipe requires 1 1/8 teaspoon of salt and Nick wants to know how much salt he heeds.
Consider short description:
3/4 cup of flour - 1 cup of flour,
1 1/8 teaspoon of salt - x teaspoon of salt.
Mathematically, you can wrte a proportion:

3/4 divided by 1 1/8
then 3/4 times x = 1 time 1 1/8
3x/4 =9/8
24x = 36
X = 36/24 = 3/2 = 1 1/2

Answer:

x = 1 [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

make equal equations first

[tex]\frac{3/4}{1 and 1/8}[/tex]  =  [tex]\frac{1}{x}[/tex]

cross multiply to get: 3/4x = 1 [tex]\frac{1}{8}[/tex]  

divide by 3/4 on both sides: x = 1 [tex]\frac{1}{2}[/tex]

SOLUTION: a diver jumps from a diving board that is 24 feet above the water. the height of the diver is given by h= -16(t-1.5)(t+1) where the height h is measured in feet and the time t

Answers

Answer:

The diver will hit the water at 1.5 seconds

Step-by-step explanation:

Given

[tex]h= -16(t-1.5)(t+1)[/tex]

Required (Missing from the question)

When will the diver hit the water?

To do this, we simply solve for t

When the diver hits the water, the height is 0 (at that point)

So, substitute 0 for h in [tex]h= -16(t-1.5)(t+1)[/tex]

[tex]0= -16(t-1.5)(t+1)[/tex]

Divide both sides by -16

[tex]\frac{0}{-16} =\frac{-16(t-1.5)(t+1)}{-16}[/tex]

[tex]\frac{0}{-16} =(t-1.5)(t+1)[/tex]

[tex]0 =(t-1.5)(t+1)[/tex]

[tex](t-1.5)(t+1)=0[/tex]

Split

[tex]t - 1.5 = 0[/tex] or [tex]t + 1 = 0[/tex]

Solve for t

[tex]t = 1.5[/tex] or [tex]t = -1[/tex]

But time (t) can not be negative.

So:

[tex]t = 1.5[/tex]

Hence, the diver will hit the water at 1.5 seconds

Which model represents the factors of x2+9x+8

Answers

Answer:

(x+1)(x+8)

Step-by-step explanation:

Those are the factors of x^2+9x+8

EZ: Find the Equation Using Two Points
(0,200) & (120,0)

Answers

Answer:

[tex]y = \frac{-5}{3}x+200[/tex]

Step-by-step explanation:

Find the value of the slope.

Find the value of the y-int.

good luck, i hope this helps :)

Find the measure of x (WILL GIVE BRAINLIEST)

Answers

Answer: it’s 66

Step-by-step explanation:

The whole triangle is 180, one side is 90 and the other is 24. So you subtract those numbers from 180

The sum of two numbers is 100. The different between them is 56. What is the larger number?

Answers

Answer:-

[tex]\pink{\bigstar}[/tex] The larger number is [tex]\large\leadsto\boxed{\tt\purple{78}}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

• Given:-

Sum of two numbers is 100.

Difference between the numbers is 56.

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To Find:-

The larger number = ?

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Solution:-

Let the two numbers be 'x' and 'y' respectively.

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

According to the question:-

Sum of two numbers is 100.

➪ [tex]\sf x + y = 100 \dashrightarrow\bold\red{[equation \: 1]}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Also,

Difference between the numbers is 56.

➪ [tex]\sf x - y = 100 \dashrightarrow\bold\red{[equation \: 2]}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Adding equation [1] and equation [2]:-

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf (x + y) + (x - y) = 100 + 56[/tex]

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➪ [tex]\sf x + y + x - y = 156[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf 2x = 156[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf x = \dfrac{156}{2}[/tex]

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[tex]\large{\bold\red{x = 78}}[/tex]

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Substituting the value of x in equation [1]:-

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf x + y = 100[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf 78 + y = 100[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf y = 100 - 78[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

[tex]\large{\bold\red{y = 22}}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Therefore, the numbers are 78 and 22.

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

The larger number is 78.

Answer:

[tex]here \: given \: that \: sum = 100 \\ diffrence = 56 \\ take \: the \:large \: number = x \\another = y \\ thenx - y = 56 \\ y = x - 56 \\ here \: x + y = 100 \\ x + x - 56 = 100 \\ 2x - 56 = 100 \\ 2x = 156 \\ x = \frac{156}{2} \\ x = 78 \\ large \: number \: = 78 \\ thank \: you[/tex]

you wish to purchase dog food foe your kennel. you find 2 equal brands. bowser dog food comes in 50lb. bags for 32.50 per bag . Woof woof dog food comes in 40 lb. bags which cost 26.95 each

Answers

Answer:

Woof Woof dog food is a better deal. It costs $1.48 per pound.

Bowser dog food costs $1.54 per pound.

can you help me ASAP
Simplify
3×4²+8-(6÷2)​

Answers

Answer:

USE PEMDAS

Step-by-step explanation:

Answer:

53

Step-by-step explanation:

The new camera you want to buy is $84.95. This weekit is on sale for 30% off. You also need to pay 7.25% sales tax. What is the inalcost of the camera? This is very easy so Ima give you guys about 50 points because im cool lol

Answers

Answer:

283.2325$

Step-by-step explanation:

84.95 x .30= 25.485
84.94-25.48= 59.47
59.47x.0725= 4.13
59.47+4.13= $63.78

Find the midpoint of a and b where a has coordinates (2,3) and b has coordinates (8,9).

Please help.

Answers

It should be about (5,5.5)

Answer:

please follow me bro i have followed u

Is the product the same when multiplying 22 x (-5) and multiplying (-5) x 22? Explain

Answers

Answer: Yes it's the same due to communitive property of multiplication

Step-by-step explanation:

22 times -5 is -110

-5 times 22 is -110

Answer: Yes Bc Of Communitive Property

Step-by-step explanation:

what is distance between C(−5,−2) and D(0,−4)

Answers

Answer:

[tex]\displaystyle d = \sqrt{29}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Coordinates (x, y)

Algebra II

Distance formula: [tex]\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Step-by-step explanation:

Step 1: Define

Point C(-5, -2)

Point D(0, -4)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formula]:                                                       [tex]\displaystyle d = \sqrt{(0+5)^2+(-4+2)^2}[/tex][√Radical] (Parenthesis) Add:                                                                        [tex]\displaystyle d = \sqrt{(5)^2+(-2)^2}[/tex][√Radical] Evaluate exponents:                                                                     [tex]\displaystyle d = \sqrt{25+4}[/tex][√Radical] Add:                                                                                               [tex]\displaystyle d = \sqrt{29}[/tex]
D=/29 that is your answer

The coordinate of the midpoint of the line AB are (1,2)
The length of the line AB is 10 units.
if the gradient of AB is 0, Find the coordinates of A and B

Answers

ye, cant help here. sorry dude wish i could. i need points tho so

whats -11 + x =19
i just dont know what we do can someone help me?

Answers

Just add the 11 to the other side since it’s negative, which gives you x=30

What is 50% in decimal form?

Answers

0.5 thanks for the points merry Christmas

Answer:

0.5

Step-by-step explanation:

divide 50 by 100

and get 0.5

please help!! will give brainliest!!
SR=___

Answers

Answer:

7

Step-by-step

on 2x-14 you got to divide by 2 on both sides and 2x/2 is 0 so that is how it is 7

In 2008, there were 285 cell phone subscribers in the small town of Berrydale. The number of subscribers increased by 75% per year after 2008. How many cell phone subscribers were in Berrydale in 2017?

Answers

Answer:

Step-by-step explanation:

[tex]F=I(1.75^t)\\ \\ F=285(1.75)^{y-2008}\\ \\ F=285(1.75)^{2017-2008}\\ \\ F=285(1.75)^9\\ \\ F=43871.99\\ \\ F\approx 43872[/tex]

What is the exact perimeter of the trapezoid?

Answers

the most exact answer is 42 + sq root 164
but the answer rounded to the nearest thousandth is 54.806

Why is
power sharing desirable ?​

Answers

Answer:

Why power sharing is desirable? It helps to reduce the possibility of conflict and clashes between social groups. Secondly, a democratic rule involves sharing power with those affected by its exercise, and who have to live with its effects.

Step-by-step explanation:

work out the total number of mobile phones sold in the 3 years​

Answers

Answer: your wuestion isn’t specific enough.

Step-by-step explanation:

40 is what precent 50?⇒

Answers

Answer:

Answer is 80%

Step-by-step explanation:

40% is 80% of 50.

I hope it's helpful!

Answer:

80%

Step-by-step explanation:

40 /50  x 100% = 80%

The coordinates of the endpoints of MP are
M(-3,-2) and P (2,3).
Which measurement is closest to the length of MP in
units?

Answers

Answer:

I'm pretty sure it is A

Find the product and simplify
(2x+3)(x+6)​

Answers

2x^2 + 12x + 3x + 18

answer: 2x^2 + 15x + 18

I hope that the attachment helps you..

rewrite the expression that is equivalent to x^2/3.
-pasagot po please-.-

Answers

Answer:

[tex]\sqrt[3]{x^{2}}[/tex]

Step-by-step explanation:

[tex]x^{2/3} = \sqrt[3]{x^{2}}[/tex]

Keisha's cat had kittens. The line plot below shows the weight, in pounds, of each kitten.

What is the total weight of all the kittens that weighed 3/8

pound?

Answers

Answer:

the answer would be 1 7/8

Step-by-step explanation:

first you would count up the number of kittens that weighted 3/8 of a pound. You should have the number of 5, next you would multiply 5 × 3/8= 1.875 (as a decimal). Then you would convert that number into a mixed number (fraction) because all the answers are in mixed number form. You should get 1 7/8 because:

(1875÷125)(1000÷125) = 158 when reduced to the simplest form. As the numerator is greater than the denominator, we have an IMPROPER fraction, so we can also express it as a MIXED NUMBER, thus 18751000 is also equal to 1 7/8 when expressed as a mixed number.

I hope this helps!

A small radio transmitter broadcasts in a 50 mile radius. If you drive along a straight line from a city 65 miles north of the transmitter to a second city 58 miles east of the transmitter, during how much of the drive will you pick up a signal from the transmitter?

Answers

Answer:

29% of the drive

Step-by-step explanation:

The plot of the problem is:

Transmitter at origin (0,0)  

City to the north at (0,70)

City to the east at (74,0)

The path from city to city is a line with slope:

m = (-70)/74 = -35/37

and y-intercept at y = 70, so the equation is y = (-35/37)*x + 70.

The transmitter reach the area enclosed by the next circle:

x^2 + y^2 = 53^2

See the picture attached

The intersection is gotten from the picture or solving:

x^2 + [(-35/37)*x + 70]^2 = 53^2

the points approximately are: (24.1, 47.2) and (45.8, 26.7)

From Pythagorean theorem the total distance of the trip is:

d1 = √(70^2 + 74^2) ≈ 101.9 miles

And the distance when the signal is picked up is:

d2 =√ [(45.8 - 24.1)^2 + (47.2 - 26.7)^2] ≈ 29.9 miles

You will pick up a signal from the transmitter in (d2/d1)*100 = 29% of the drive.

A hiker in Africa discover a skull that contains 63% of its original amount of C-14

Answers

Multiply the original amount by .63 to get your answer
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